Explosion Apparatus Auxiliary Ignition Closure Mechanism
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Solution Overview
Problem
Existing devices for generating high-intensity pressure pulses through explosions lack efficiency and repeatability, particularly in applications like boiler cleaning, where high pressure peaks and rapid cycling are required without exposing explosive substances to hot environments for extended periods.
Innovation Solution
A device with a pressure-resistant container featuring an auxiliary and main explosion chamber, where an auxiliary explosion opens a closure mechanism, allowing a high-pressure gas mixture in the main chamber to generate intense pressure pulses. This design uses a gas spring for quick closure and minimal moving parts, enabling repetitive operation with flexible ignition control and non-explosive substance addition for safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stress or pressure
If the outlet opening is kept closed until shortly before ignition, then the pressure peak is maximized, but the repetition capability is reduced due to longer cycle time
Solution Approach 1:
The closure means is moved to the open position before the main explosion occurs by means of an auxiliary explosion. This preliminary action ensures that the outlet opening is already open when the main explosion generates high pressure, allowing rapid pressure release while maintaining the ability to quickly reset for repeated operations
Solution Approach 2:
An auxiliary explosion chamber with its own ignition device is introduced as an intermediary mechanism. This auxiliary explosion serves as a mediator to drive the closure means to the open position, decoupling the timing of outlet opening from the main explosion ignition and enabling independent control of both processes for optimized performance
2Stress or pressure
If the closure means is moved at maximum speed, then the gas pressure remains as high as possible at ignition, but the mechanical stress on the closure means increases
Solution Approach 1:
The auxiliary explosion is ignited before the main explosion to preliminarily drive the closure means to the open position. This sequence allows the closure means to reach maximum speed before the main explosion occurs, ensuring high gas pressure at ignition while the auxiliary explosion has already completed its driving function
Solution Approach 2:
The spring element is pre-loaded to provide a restoring force that cushions the closure means during its movement. This beforehand cushioning allows the closure means to be rapidly driven open by the auxiliary explosion while the spring stores energy to control the movement and prepare for the return stroke, reducing peak mechanical stresses
3Productivity
If explosive substances are exposed to hot environments for extended periods, then cleaning effectiveness may improve, but safety is compromised
Solution Approach 1:
The device uses periodic, pulsed explosions rather than continuous exposure of explosive substances to hot environments. The explosive material is introduced, ignited in a controlled manner, and the chamber is cleared between cycles, limiting thermal exposure time while maintaining cleaning effectiveness through repeated high-intensity pressure pulses
Solution Approach 2:
The explosive substance is introduced into the explosion chamber only for the brief moment needed to generate the pressure pulse, then rapidly expelled with the exhaust gases. This extraction of the explosive material from the hot environment after its function is completed minimizes exposure time and associated safety risks
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution achieves high-intensity pressure pulses with rapid repetition, efficient cleaning of large systems, and enhanced safety by minimizing exposure of explosive substances to heat, allowing for quick and effective cleaning of boilers and other applications with reduced material stress on moving parts.
Implementation Method 1
an auxiliary explosion is ignited. This is done by an ignition device in or on the auxiliary explosion chamber
Implementation Method 2
The auxiliary explosion chamber then has an ignition device and an ignition device in or on the main explosion chamber can be dispensed with
Implementation Method 3
The spring element can be an ordinary spiral spring, but is preferably formed by a gas spring. Such a spring element also brings about a return of the closure means after an explosion
Implementation Method 4
Ignition of the flowable, explosive material in the main explosion chamber results in an explosion with a very high gas pressure
Implementation Method 5
an explosion pressure occurs which is approximately 25 times higher than the pressure at the time of ignition
Implementation Method 6
The spring element can be an ordinary spiral spring, but is preferably formed by a gas spring
Data Source
Figure 1
Figure 2~3
AI summary
An apparatus and method for producing explosions, including a pressure-resistance container having a main explosion chamber introduced therein, further including a supply line for supplying a flowable explosible material, and a drain opening for the directed drainage of gas pressure caused by the ignition of the explosible material. The drain opening is closed directly by a closure means, preferably a plunger, which is pressed against the drain opening using a gas spring and held closed substantially up to the time of ignition. Before the actual main explosion, the closure means is moved by the igniting and the pressure force of an auxiliary explosion, thereby exposing the drain opening.